# How common is Selective Mutism in children?

Canonical: https://pinnacleblooms.org/ask/how-common-is-selective-mutism-in-children
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

Selective Mutism is uncommon but not rare, affecting roughly 1 in 140 children (under 1%), slightly more girls, and usually emerging between ages 3 and 6 when a child starts school. It is an anxiety-based difficulty — children want to speak but feel unable to in certain settings — and responds well to gentle support. AbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional.

*When a child speaks freely at home yet falls silent at school, it isn't shyness or defiance — it's a recognised anxiety-based difficulty, and you are far from alone.*

## In short
Selective Mutism is **uncommon but not rare** — most estimates place it at roughly **1 in 140 children (under 1%)**, with some studies in school settings reporting figures a little higher. It is seen slightly more often in girls, and it tends to become noticeable when a child starts nursery or school, where the expectation to speak in new settings first appears. It is an *anxiety-based* difficulty — these children genuinely *want* to speak but feel unable to in certain situations — and with the right understanding and support, the outlook is very encouraging.

## Understanding the numbers
- **Prevalence:** widely cited as **about 0.7–0.8%** of children — close to 1 in 140 — though numbers vary because the condition is often under-recognised and quietly mistaken for ordinary shyness.
- **When it shows:** it most commonly emerges between **ages 3 and 6**, when a child meets settings outside the family. A diagnosis is usually considered only once the difficulty has lasted more than a month and isn't simply the normal settling-in period of a new school.
- **The pattern that matters:** a child speaks comfortably and often a great deal at home, yet is consistently unable to speak in specific situations such as the classroom — despite having the language ability to do so.
- **It rarely travels alone:** it frequently sits alongside social anxiety, and supporting that underlying anxiety is central to helping a child find their voice.

Because it is genuinely uncommon, many families spend a long time wondering what is happening — knowing it is a real, named, treatable condition is often the first relief.

## When to seek a check
Seek a friendly developmental check if your child consistently does not speak in certain settings (school, with relatives, in shops) for **more than a month**, while speaking freely elsewhere — especially once the first few weeks of a new setting have passed. Early, gentle support tends to bring the best results, so there is no need to wait and see for long.

## The Pinnacle way
AbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from an app or online form. Our clinicians look gently at the whole picture — communication, anxiety and the situations that trigger silence — through a [clinician-administered structured assessment](/ask/what-is-the-abilityscore-and-how-is-it-calculated), then shape calm, confidence-building [speech and language therapy](https://www.pinnacleblooms.org/top-speech-therapy-center-india-proven-improvement-rate) around your child. Begin by [exploring what support looks like](/).

## Trusted sources
WHO ICD-11 classification of Selective Mutism within anxiety and fear-related disorders; American Speech-Language-Hearing Association guidance on selective mutism and childhood communication; American Academy of Pediatrics (HealthyChildren.org) guidance on childhood anxiety.

**Next step —** Wondering if what you're seeing is Selective Mutism? [Book a gentle assessment with a Pinnacle clinician](https://www.pinnacleblooms.org/top-speech-therapy-center-india-proven-improvement-rate).

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.

## Sources
- WHO ICD-11: Selective Mutism within anxiety and fear-related disorders: https://icd.who.int
- ASHA guidance on selective mutism and childhood communication: https://www.asha.org
- AAP HealthyChildren.org: childhood anxiety guidance: https://www.healthychildren.org

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Parent: https://pinnacleblooms.org/ask/lens/stakeholder/parent
- Adaptive: https://pinnacleblooms.org/ask/lens/domain/adaptive
- Support: https://pinnacleblooms.org/ask/lens/intent/support
- Plan: https://pinnacleblooms.org/ask/lens/lifecycle/plan
- Special Education: https://pinnacleblooms.org/ask/lens/route/special-education
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity

## Related question paths

### Understand the subject
- What Causes Selective Mutism in Children?: https://pinnacleblooms.org/ask/what-causes-selective-mutism-in-children
- What is Selective Mutism in Early Childhood?: https://pinnacleblooms.org/ask/what-is-selective-mutism-and-what-does-it-look-like-in-early-childhood
- How Selective Mutism Affects a Child's Daily Life: https://pinnacleblooms.org/ask/how-does-selective-mutism-affect-a-child-s-daily-life
- Is Selective Mutism considered a disability?: https://pinnacleblooms.org/ask/is-selective-mutism-considered-a-disability
- Is Selective Mutism Genetic or Hereditary?: https://pinnacleblooms.org/ask/is-selective-mutism-genetic-or-hereditary
- What are common myths about Selective Mutism?: https://pinnacleblooms.org/ask/what-are-common-myths-about-selective-mutism
- What are the types or levels of Selective Mutism?: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-selective-mutism
- What is Selective Mutism?: https://pinnacleblooms.org/ask/what-is-selective-mutism
- What other conditions often occur alongside Selective Mutism?: https://pinnacleblooms.org/ask/what-other-conditions-often-occur-alongside-selective-mutism
- Early Intervention Outcomes for Selective Mutism Under 7: https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-selective-mutism-in-children-under-7
- What is Selective Mutism, and what are its ICD-11 features in early childhood?: https://pinnacleblooms.org/ask/what-is-selective-mutism-and-what-are-its-icd-11-features-in-early-childhood
- What is the ICD-11 classification for Selective Mutism?: https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-selective-mutism

### Recognise signs & concerns
- Can Selective Mutism Be Cured?: https://pinnacleblooms.org/ask/can-selective-mutism-be-cured
- Can Selective Mutism Be Prevented?: https://pinnacleblooms.org/ask/can-selective-mutism-be-prevented
- Do Boys Show Selective Mutism Differently?: https://pinnacleblooms.org/ask/do-boys-show-selective-mutism-differently
- Selective Mutism in Girls: https://pinnacleblooms.org/ask/do-girls-show-selective-mutism-differently
- Should I be worried my child might have Selective Mutism?: https://pinnacleblooms.org/ask/should-i-be-worried-my-child-might-have-selective-mutism
- Early Signs of Selective Mutism: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-selective-mutism
- Early Signs of Selective Mutism in a 1-Year-Old Boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-selective-mutism-in-a-1-year-old-boy
- Early signs of selective mutism in a 1-year-old girl: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-selective-mutism-in-a-1-year-old-girl
- Early Signs of Selective Mutism in a 12-to-18-Month-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-selective-mutism-in-a-12-to-18-month-old
- Early signs of Selective Mutism in an 18–24-month-old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-selective-mutism-in-a-18-to-24-month-old
- Early Signs of Selective Mutism in a 2-Year-Old: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-selective-mutism-in-a-2-year-old
- Early Signs of Selective Mutism in a 2-Year-Old Boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-selective-mutism-in-a-2-year-old-boy

### Explore causes & influences
- Are boys more likely to have selective mutism?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-selective-mutism
- Are girls more likely to have Selective Mutism?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-selective-mutism
- What Causes Selective Mutism in Young Children?: https://pinnacleblooms.org/ask/what-causes-selective-mutism-in-young-children
- Early Intervention for Selective Mutism: Advancing UNCRPD and the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-selective-mutism-advance-un-child-rights-uncrpd-and-the-sdgs
- Contributing Factors for Selective Mutism: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-selective-mutism-in-early-childhood
- Cost-effectiveness of early therapy for Selective Mutism: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-selective-mutism-in-young-children
- What is the prevalence and public-health burden of Selective Mutism among young children in India?: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-selective-mutism-among-young-children-in-india

### Understand assessment
- How Selective Mutism Is Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-selective-mutism-assessed-in-a-young-child
- How AbilityScore Tracks Progress in Selective Mutism: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-selective-mutism
- How Is Selective Mutism Assessed in Children Under 7?: https://pinnacleblooms.org/ask/how-is-selective-mutism-assessed-in-children-under-7
- What an AbilityScore of 0–100 Means for a Child with Selective Mutism: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-selective-mutism
- AbilityScore® 100–200 in Selective Mutism: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-selective-mutism
- What does an AbilityScore of 200–300 mean for a child with Selective Mutism?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-selective-mutism
- What an AbilityScore of 300–400 Means in Selective Mutism: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-300-400-mean-for-a-child-with-selective-mutism
- What an AbilityScore® of 400–500 means in Selective Mutism: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-400-500-mean-for-a-child-with-selective-mutism
- What an AbilityScore of 500–600 means for Selective Mutism: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-500-600-mean-for-a-child-with-selective-mutism
- What does an AbilityScore of 600-700 mean for a child with Selective Mutism?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-600-700-mean-for-a-child-with-selective-mutism
- What does an AbilityScore of 700–800 mean for a child with Selective Mutism?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-700-800-mean-for-a-child-with-selective-mutism
- What does an AbilityScore of 800–900 mean for a child with Selective Mutism?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-800-900-mean-for-a-child-with-selective-mutism

### Explore therapy & support
- What conditions can Selective Mutism be mistaken for?: https://pinnacleblooms.org/ask/what-conditions-can-selective-mutism-be-mistaken-for
- How Is Selective Mutism Diagnosed in a Child?: https://pinnacleblooms.org/ask/how-is-selective-mutism-diagnosed-in-a-child
- Are there successful adults who grew up with Selective Mutism?: https://pinnacleblooms.org/ask/are-there-successful-adults-who-grew-up-with-selective-mutism
- Does Selective Mutism Get Better or Worse as a Child Grows?: https://pinnacleblooms.org/ask/does-selective-mutism-get-better-or-worse-as-a-child-grows
- How can a non-verbal child with Selective Mutism communicate?: https://pinnacleblooms.org/ask/how-can-a-non-verbal-child-with-selective-mutism-communicate
- How to Support Adaptive Development in Selective Mutism: https://pinnacleblooms.org/ask/how-can-we-support-adaptive-development-in-a-child-with-selective-mutism
- How do I choose the right therapy for a child with Selective Mutism?: https://pinnacleblooms.org/ask/how-do-i-choose-the-right-therapy-for-a-child-with-selective-mutism
- How do I explain Selective Mutism to my child?: https://pinnacleblooms.org/ask/how-do-i-explain-selective-mutism-to-my-child
- How do I support the siblings of a child with Selective Mutism?: https://pinnacleblooms.org/ask/how-do-i-support-the-siblings-of-a-child-with-selective-mutism
- If One Child Has Selective Mutism, Can My Next Child Have It Too?: https://pinnacleblooms.org/ask/if-one-child-has-selective-mutism-can-my-next-child-have-it-too
- Selective Mutism — What Should I Do First?: https://pinnacleblooms.org/ask/my-child-was-just-diagnosed-with-selective-mutism-what-should-i-do-first
- What can I expect as my child with Selective Mutism grows up?: https://pinnacleblooms.org/ask/what-can-i-expect-as-my-child-with-selective-mutism-grows-up

### At home & in everyday life
- How can I support my child with Selective Mutism at home?: https://pinnacleblooms.org/ask/how-can-i-support-my-child-with-selective-mutism-at-home